Which transistor configuration has the highest input  resistance?

1 Answer

Answer :

Common collector.

Related questions

Description : Which transistor configuration provides a phase reversal between the input and output signals?

Last Answer : Common emitter.

Description : Which transistor configuration has a current gain of less than 1?

Last Answer : Common base.

Description : In the basic transistor amplifier discussed earlier, what is the relationship between the polarity of the input and output signals?

Last Answer : The signals are opposite in polarity or 180 degrees out of phase with each other.

Description : What two transistor amplifier configurations are combined in the single-transistor, two-input, single-output difference amplifier?

Last Answer : Common emitter (CE) and common base (CB)

Description : In the inverting configuration when the noninverting input is grounded, the inverting input is at (signal, virtual) ground

Last Answer : Virtual.

Description : In the inverting configuration, what is the voltage (for all practical purposes) at the inverting input to the operational amplifier if the input signal is a 1-volt, peak-to-peak sine wave?

Last Answer : 0 volts.

Description : In the inverting configuration, the input signal is applied to the (a) (inverting, noninverting) input and the feedback signal is applied to the (b) (inverting, noninverting) input.

Last Answer : a. Inverting. b. Inverting.

Description : select the correct response from the choices given in the parentheses. Q-20. In a closed-loop configuration the output signal is determined by (the input signal, the feedback signal, both).

Last Answer : Both the input signal and the feedback signal.

Description : When you are using an ohmmeter to test a transistor for leakage, what is indicated by a low, but not shorted, reverse resistance reading?

Last Answer : A leaking transistor

Description : When you are testing the gain of an audio-frequency transistor with an ohmmeter, what is indicated by a 10-to-1 resistance ratio?

Last Answer : Normal gain.

Description : A disadvantage of using the configuration in the illustrated circuit is _________. EL-0045 A. no current gain B. high input resistance C. high voltage gain D. becomes unstable with an increase of ambient temperature

Last Answer : Answer: A

Description : The advantage of using the illustrated circuit configuration is _________. EL-0045 A. high input resistance B. high current gain C. the best stability with an increase in temperature D. the input and output are 180 degrees out of phase

Last Answer : Answer: C

Description : How are amplifiers classified according to the transistor configuration?

Last Answer : 1. Common emitter amplifier 2. Common base amplifier 3. Common collector amplifier

Description : Compare between CB , CE & CC transistor configuration.

Last Answer : Parameter CB CE CC I/P impedance Low Or 50Ω Medium Or 600Ωto 4kΩ High Or 1 MΩ Current Gain Less than or equal to 1 High Highest Voltage Gain Medium Medium Less ... k Ω to 50 k Ω Low Or 50 Ω Phase shift between input and output 0° 360° 0° 

Description : The transistor configuration to connect 4 W speaker with 600 W output impedance audio amplifier is • Common Emitter • Common Base • Common Collector • None of the above.

Last Answer : The transistor configuration to connect 4 W speaker with 600 W output impedance audio amplifier is Common Collector

Description : When a series voltage regulator is used to control output voltages, any increase in the input voltage results in an increase/a decrease (which one) in the resistance of the regulating device.

Last Answer : An increase.

Description : When a series voltage regulator is used to control output voltages, any increase in the input voltage results in an increase/a decrease in the resistance of the regulating device.

Last Answer : Increase.

Description : In a sawtooth generator, why is the transistor turned on for a longer time than the discharge time of the RC network?

Last Answer : To allow the capacitor time to discharge.

Description : What are the factors that limit the frequency response of a transistor amplifier?

Last Answer : The capacitance and inductance of the circuit and the interelectrode capacitance of the transistor.

Description : What are two transistor tests that can be done with an ohmmeter?

Last Answer : Gain and junction resistance.

Description : How is the collector lead identified on an oval-shaped transistor?

Last Answer : By the wide space between the collector lead and the other two leads (emitter and base)

Description : What safety precaution must be taken before replacing a transistor?

Last Answer : The power must be removed from the circuit.

Description : What method for checking transistors is cumbersome when more than one transistor is bad in a circuit?

Last Answer : The substitution method.

Description : What is the greatest danger to a transistor?

Last Answer : Heat.

Description : List three items of information normally included in the general description section of a specification sheet for a transistor.

Last Answer : The kind of transistor, the transistor's common applications, and mechanical data

Description : Name the two current loops in a transistor.

Last Answer : The base current loop and the collector current loop

Description : What is the relationship between the polarity of the voltage applied to the PNP transistor and that applied to the NPN transistor?

Last Answer : The polarity of voltage applied to the PNP transistor is opposite of that applied to the NPN

Description : What are the majority current carriers in a PNP transistor?

Last Answer : Holes.

Description : What percentage of current in an NPN transistor reaches the collector?

Last Answer : 98 percent.

Description : In the NPN transistor, what section is made very thin compared with the other two sections?

Last Answer : The P or base section.

Description : What are the three transistor configurations?

Last Answer : Common emitter (CE), common base (CB), and common collector (CC)

Description : To properly bias an NPN transistor, what polarity voltage is applied to the collector, and what is its relationship to the base voltage?

Last Answer : Positive, more positive.

Description : What is one of the most important parts of any transistor manufacturing process?

Last Answer : Quality control.

Description : What was the name of the very first transistor?

Last Answer : Point-contact.

Description : In which direction does the arrow point on an NPN transistor?

Last Answer : Outward.

Description : What electronic function made the transistor famous?

Last Answer : Amplification.

Description : The base of a transistor serves a purpose similar to what element of the FET

Last Answer : Gate.

Description : What is one of the primary advantages of the FET when compared to the bipolar transistor?

Last Answer : High input impedance.

Description : Why is a high-gain transistor used in the phase-shift oscillator?

Last Answer : Because of the losses encountered in the RC networks.

Description : What are the three basic configurations of transistor oscillators?

Last Answer : Common collector (CC), common emitter (CE), and common base (CB).

Description : As a transistor ages, what happens to the leakage current?

Last Answer : It tends to increase

Description : Which junction of the transistor in the common-emitter detector detects the modulation envelope?

Last Answer : Emitter-base junction

Description : What three functions does the transistor in a regenerative detector serve?

Last Answer : Oscillator, mixer, and detector.

Description : What simple, one-transistor detector circuit uses the heterodyne principle?

Last Answer : Regenerative detector.

Description : When you are using an ohmmeter to test a transistor, what range settings should be avoided?

Last Answer : Any range setting that produces a current flow through the transistor that exceeds 1 milliamp (usually R x 1 range)

Description : What is the major advantage of a transistor over a tube?

Last Answer : Rugged design.

Description : What characteristic of a transistor is varied in a semiconductor-reactance modulator?

Last Answer : Collector-to-emitter capacitance.

Description : What are the four classes of operation of a transistor amplifier?

Last Answer : A, AB, B, C.

Description : What field configuration is easiest to produce in a given waveguide?

Last Answer : . Dominant mode

Description : What does the term "closed-loop" mean in the closed-loop configuration of an operational amplifier?

Last Answer : The use of degenerative (negative) feed-back